4. F - Mech Eng,Light,Heat,Weapons
  5. 15
  6. B

Donald M. Paterson

F - Mech Eng,Light,Heat,Weapons – 15 – B

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Apparatus for generating an oscillatory motion

F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent

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Paper trimmers

B - Operations – Transporting – 26 – D
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Photographic spools

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Photographic transparency slides and the like

G - Physics – 03 – B
Patent

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Photographic washing tray with weir and angled inlet

G - Physics – 03 – D
Patent

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Receptacles for holding slides

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Patent

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Profile ID: LFCA-PAI-P-173332

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