When Joseph-Louis Lambot used reinforced concrete for the first time?

1848
1888
1918
1938
In 1841 he started constructing water tanks using cement mortar and iron reinforcement. In 1848 he constructed his first boat using the same system which was later presented at the 1855 World's Fair in Paris.
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1848
1888
1918
1938
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flagGermany
66%
33%
0%
0%
12
flagthe United States
36%
36%
18%
9%
11
flagPoland
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41%
24%
9%
1253
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41%
29%
5%
17