4. Valves and valve actuation
  5. Hermetic flexible wall seal for actuator
  6. Diaphragm

Birch, Stewart, Kolasch & BIrch, LLP

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Diffractive optical element and optical head

Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
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Driving circuit for improving starting of hybrid induction...

Electricity: motive power systems – Induction motor systems – Primary circuit control
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Electric motor

Electrical generator or motor structure – Dynamoelectric – Rotary
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Exhaust heat energy recovery system for internal combustion...

Power plants – Internal combustion engine with treatment or handling of... – Pulsed – timed – tuned or resonating exhaust
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Hot swap fan tray with fan guard

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing with mounting means
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