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Bureau of Land Records, Harrisburg, Pa [microform]
Historical Society of Pennsylvania - Microfilm Room MFILM XR 909:13
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- Format:
- Book
- Microformat
- Language:
- English
- Subjects (All):
- Patents--Pennsylvania.
- Patents.
- Pennsylvania--Patents.
- Pennsylvania.
- Physical Description:
- microfilm reel(s) ; mm.
- Notes:
- Microfilm.
- Local Notes:
- Acc. 1987.
- Harr. Roll 12.
- Patent books, 1767-1771: Book AA-9. Book AA-10. Book AA-11, [to page 507].
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