
Howlett improved heat reclaimer
1930-1935
1930-1935
1957-1965
1964
1949-07-26
1842-1880
circa 1810
1755-1770
1901-1900
1949-07-26
1860-1920
1977; (2013)
1976
1994
1994-1995
1935
1932
2013; (1975)
1975-1980 (2011)
1975; (2013)
2013; (1975)
1971-1975
1924
1994-1995
1977; (2013)
1975; (2013)
1977; (2013)
1975; (2013)