4. Metal working
  5. Method of mechanical manufacture
  6. Structural member making

Donald B. Kyle

Inventor

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Door operator system

Movable or removable closures – Up-and-over type; e.g. – moves from vertical to withdrawn... – With operator
Reexamination Certificate

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Door operator system

Movable or removable closures – Up-and-over type; e.g. – moves from vertical to withdrawn... – With operator
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Door operator system

Movable or removable closures – Up-and-over type; e.g. – moves from vertical to withdrawn... – With operator
Reexamination Certificate

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Operator for upwardly acting door

Machines not elsewhere specified – Miscellaneous
Design Patent

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Process of making an insulated door

Metal working – Method of mechanical manufacture – Structural member making
Patent

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Profile ID: LFUS-PAI-P-1314206

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