Howard's patent ventilator
Subtitle: a scientific invention of cheap construction, applicable at small cost to all buildings, railroad cars, passenger vessels, &c.
Series: CIHM/ICMH microfiche series -- no. 56116.
Publisher: s.n.]
Published: 1986
Place of publication: [St. John's, N.B.?
Language: eng
Format: Microform
Number of pages: 15
Subjects: Ventilation.
Notes: Cover title.

Reproduction of original in: Douglas Library.

Pre-1900 Canadiana.

Microfiche. Ottawa : Canadian Institute for Historical Microreproductions, 1986. 1 microfiche (11 fr.) ; 11 x 15 cm. (CIHM/ICMH Microfiche series = CIHM/ICMH collection de microfiches ; no. 56116).