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  • US2450474A - Method of making practice golf balls : en
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  • CA451700A - Shiftable rotary operative fastener assembly : en fr
  • CA451679A - Mathematical squaring device of the electron tube type : en fr
  • US2450713A - Refrigerating system using dry ice and including a secondary heat exchange circuit : en
  • USD151223S - Design for a textile fabric or similar article : en
  • USD151286S - Design fob an oxygen therapy apparatus : en
  • AU137089B2 - A folding Chair : en
  • US2450781A - Air pressure water system : en
  • CA451721A - Control arrangement for automobiles : en fr
  • CA16501S - Whirling device for tumbling dice : en
  • US2450822A - Lock device for well tools : en
  • US2450522A - Liquid clarifier : en
  • US2450539A - Dolly wheel plate : en
  • USD151298S - Design for a helicopter : en
  • US2450818A - Electronic noise eliminator : en
  • US2450856A - Method of coating by evaporating metals : en
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  • AU137775B2 - Improvements in electric water heaters : en
  • AU157646A - Projection apparatus : en
  • CA451696A - Remote control system : en fr
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  • US2450420A - Variable pitch impeller : en
  • US2450475A - Gas discharge oscillator : en
  • CA451726A - Method of casting enlarged bodies on pins or rods : en fr
  • AU2225048A - Improvement in fuel igniters : en
  • CA451711A - Switching device : en fr
  • CA451543A - Insulated conductor construction : en fr
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  • US2450650A - Electric capacitor : en
  • GB609883A - Feeding ammunition to automatic cannon, machine guns and the like : en
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  • US2450491A - Helicopter : en
  • US2450662A - Impact testing machine : en
  • US2450488A - Two-speed motor drive for loom letoffs : en
  • US2450700A - Oil refilling device : en
  • US2450405A - Mineral oil composition and improving agent thereof : en
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  • USD151216S - Design for a cabinet or similar article : en
  • US2450591A - Dental impression accessory : en
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  • DK67732C - Process for the manufacture of electrical capacitors with oxide-insulated aluminum coatings. : da en
  • US2450438A - Apparatus for applying liquid size to pottery ware : en
  • US2450462A - Mass spectrometry : en
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  • GB609772A - Improvements in or relating to front edge detector mechanism for use in sheet feeding apparatus : en
  • CA451544A - Method and apparatus for making non-metallic sheathed conductors : en fr
  • GB609562A - Improvements in or relating to synchronous motor electric clocks and the like : en
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  • US2450754A - Process for preparing enol acetates of alpha-diketones : en
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  • GB609699A - Improvements in open and open close fireplaces : en
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  • US2450578A - Preparation of aqueous dispersions of synthetic rubbers : en
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  • DK67747C - Apparatus for introducing foaming agents, wetting agents and similar additives into the pressurized water line by fire extinguishers. : da en
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  • GR11817B - BED - CAMPAIGN ARMCHAIR. : el en
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  • GB609852A - Improvements in angling and fishing devices, and the like : en
  • GB609792A - Improvements relating to the manufacture of highly polymeric esters : en
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