4. Railway rolling stock
  5. Locomotives
  6. Traction regulators

David P. Viola

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Method and apparatus for maintaining contact between the recordi

Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Patent

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Program controlled beam focus to compensate for thermal changes

Optical: systems and elements – Lens – With support
Patent

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Scanning apparatus with self-propelled linear motion carriage

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Self-propelled linear motion drive apparatus

Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent

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Support for a self-propelled linear motion drive apparatus

Railway rolling stock – Locomotives – Traction regulators
Patent

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Profile ID: LFUS-PAI-P-663909

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