4. G - Physics
  5. 03
  6. B

Hubert Hackenberg

G - Physics – 03 – B

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Film transport mechanism for cameras

G - Physics – 03 – B
Patent

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Microfilm reading and reverse enlarging apparatus

G - Physics – 03 – B
Patent

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Photographic camera with flash unit

G - Physics – 03 – B
Patent

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Projection copying apparatus and projection screen therefor

G - Physics – 03 – B
Patent

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Microfilm reading and reverse enlarging apparatus

G - Physics – 03 – B
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Projection copying apparatus and projection screen therefor

G - Physics – 03 – B
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFCA-PAI-P-534451

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