4. Optical: systems and elements
  5. Lens
  6. With variable magnification

Francis H. Boos

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Accumulating control clutch mechanism

Machine element or mechanism – Mechanical movements – Oscillation or reciprocation to intermittent unidirectional...
Patent

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Adapter between knob and shaft

Joints and connections – Interfitted members – Radially interposed shim or bushing
Patent

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Additive dispensing system

Textiles: fluid treating apparatus – Machines – Combined
Patent

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Adjustable fastening means between related members

Stoves and furnaces – Stove lids and tops – Liquid or gaseous fuel
Patent

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Air conditioner damper control

Refrigeration – Structural installation – Window connected or mounted
Patent

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Profile ID: LFUS-PAI-P-63924

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