4. Static structures (e.g., buildings)
  5. Machine or implement
  6. Roofing

Don Albert Neifer

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Apparatus for propelling a carriage along the length of...

Static structures (e.g. – buildings) – Machine or implement – Roofing
Reexamination Certificate

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Electrical controller for roofing apparatus

Static structures (e.g. – buildings) – Machine or implement – Roofing
Patent

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Guardrail system for an apparatus movable along a roof...

Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1786265

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