81
by Beetham, E.
Published 1791
Printed for Ridgway
Subjects: ...Patents / Early works to 1800...

84
by Black, Furman
Published 1846
s.n
Subjects: ...Cipher and telegraph codes / Patents / United States...

85
Published 1778
And sold by J. Hand, J. Bew, and J. Pridden
Subjects: ...Building materials / Great Britain / Patents...

87
Published 1712
s.n
Subjects: ...Clocks and watches / Patents / Early works to 1800...

93
Published 1704
s.n
Subjects: ...Clocks and watches / Jewel bearings / Patents / Early works to 1800...

94
Published 1704
s.n
Subjects: ...Clocks and watches / Jewel bearings / Patents / Early works to 1800...

95
Published 1732
s.n
Subjects: ...Patents / Great Britain...

96
Published 2023
The World Bank
Subjects: ...Digital and Green Patents...

97
by Hornblower, Jonathan Carter
Published 1788
s.n
Subjects: ...Steam-engines / England / Patents...

99
by Lytras, Miltiadis
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute
Subjects: ...mechanical patent classification...

100
by Roos, Göran
Published 2015
University of Adelaide Press
Subjects: ...Patent...