4. Geometrical instruments
  5. Straight-line light ray type
  6. Vertical angle

Nikolay Ivanov

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Delay clock track read back data to compensate time variance...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate

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Use of offline servo track writer together with single pass...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Reexamination Certificate

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Verticality/horizon indicator for construction

Geometrical instruments – Straight-line light ray type – Vertical angle
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2797733

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