Results 281 to 290 of about 3,522,828 (292)

Improvement in Ventilating Cars

Scientific American
openaire   +1 more source

Improved Awning and Ventilator

Scientific American, 1881
openaire   +1 more source

An Improved Sewer Ventilator

Scientific American, 1889
openaire   +1 more source

Improved Ventilating Chimney

Scientific American
openaire   +1 more source

Improved ventilation of greenhouse

2000
openaire   +2 more sources

Improved Ventilation of Ships

Scientific American
openaire   +1 more source

Improved Steam Apparatus for Heating and Ventilating

Science, 1889
openaire   +2 more sources

Barker's improvement in heating and ventilation

Journal of the Franklin Institute, 1874
openaire   +1 more source

Improvements to the Ventilated Improved Pit latrine in Tanzania

Waterlines, 1983
openaire   +1 more source

Improved Soil Pipe Ventilator

Scientific American, 1880
openaire   +1 more source