4. F - Mech Eng,Light,Heat,Weapons
  5. 21
  6. K

W. Shaffer John

F - Mech Eng,Light,Heat,Weapons – 21 – K

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Method and apparatus for flashing photoflash lamps

G - Physics – 03 – B
Patent

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Method of preparing fulminating material

C - Chemistry – Metallurgy – 06 – B
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Photoflash lamp

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Patent

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Photoflash lamp

F - Mech Eng,Light,Heat,Weapons – 21 – K
Patent

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Photoflash lamp

F - Mech Eng,Light,Heat,Weapons – 21 – K
Patent

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Profile ID: LFCA-PAI-P-675145

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