An automatic photoelectric triggering mechanism for a data-recording camera

Materias

• Electric eye cameras
• Lumber
• Grading

Ediciones (2)

• An automatic photoelectric triggering mechanism for a data-recording camera (1970)

  U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station · inglés

• An automatic photoelectric triggering mechanism for a data-recording camera (1970)

  U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station · inglés

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