4. Geometrical instruments
  5. Miscellaneous
  6. Light direction

Nippon Kogaku K. K.

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35 mm waterproof camera

Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent

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Air flow shielding attachment for use in projection type exposur

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Alarm device for camera

Patent

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Albada finder

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Alignment apparatus

Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent

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Profile ID: LFUS-PAI-P-217003

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