Land vehicles – Wheeled – Occupant propelled type
Patent
1987-10-27
1989-05-16
Marmor, Charles A.
Land vehicles
Wheeled
Occupant propelled type
272 73, 2803041, B62K 316
Patent
active
048303887
ABSTRACT:
A ridable multi-functional wheelchair assembly, aside from being used as a general wheelchair, may be converted into a pedicab by connecting a rear wheel thereto; the pedicab may be further converted into a tread wheel by suspending the rear wheel from the ground or floor with an U-shaped supporter.
REFERENCES:
patent: 557841 (1896-04-01), Locke
patent: 607355 (1898-07-01), Eickemeyer
patent: 625377 (1899-05-01), Blood et al.
patent: 1059466 (1913-04-01), Hosmer
patent: 3423086 (1969-01-01), Moore
patent: 4770431 (1988-09-01), Kulik
Hill Mitchell J.
Marmor Charles A.
Wang Allen S. P.
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