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Piston with crown cooling cavity and radial ribs formed therein

Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Patent

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Piston-cooling arrangement for an internal combustion engine

Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Reexamination Certificate

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Piston-cylinder assembly of an internal combustion engine

Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent

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Piston-operated internal-combustion engine having wet cylinder l

Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent

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Piston-pin for liquid cooled pistons

Internal-combustion engines – Cooling – Internal cooling of moving parts; e.g. – hollow valves,...
Patent

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Pivotal cooling unit

Internal-combustion engines – Cooling – Devices for cooling liquid by air flow
Patent

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Plastic fan and thermal clutch drive

Internal-combustion engines – Cooling – Automatic coolant flow control
Patent

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Pneumatic cone clutch fan drive having threaded attachment...

Internal-combustion engines – Cooling – Automatic coolant flow control
Reexamination Certificate

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Portable 4-cycle engine and portable machine equipped with...

Internal-combustion engines – Cooling – Air-cooled
Reexamination Certificate

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Portable engine

Internal-combustion engines – Cooling – Air-cooled
Patent

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Portable handheld motor tool having a one-piece fan housing

Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent

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Portable handheld motor-driven tool

Internal-combustion engines – Cooling – Air-cooled
Patent

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Portable handheld work apparatus

Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent

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Portable handheld work apparatus

Internal-combustion engines – Cooling – Air-cooled
Patent

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Portable handheld work apparatus such as a motor-driven chain sa

Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Patent

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Portable power working machine

Internal-combustion engines – Cooling – Air-cooled
Reexamination Certificate

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Portable power working machine

Internal-combustion engines – Cooling – Air-cooled
Reexamination Certificate

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Portable power working machine

Internal-combustion engines – Cooling – Air-cooled
Reexamination Certificate

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Portable, hand-operated working machine

Internal-combustion engines – Cooling – Air-cooled
Reexamination Certificate

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Power blower

Internal-combustion engines – Cooling – Air-cooled
Patent

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