Modifiche

| 1914 || Introduction of mechanical pencil ''Eversharp''

| 1914 || Introduction of mechanical pencil ''Eversharp''

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| 1917 || Acquisition of ''Boston Pen Company''

| 1917 || Acquisition of ''Boston Fountain Pen Company''

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| 1917 || The name of the company becomes ''The Wahl Company''

| 1917 || The name of the company becomes ''The Wahl Company''

| 1918 || Introduced the hard rubber [[Tempoint]] line

| 1918 || Introduced the hard rubber [[Tempoint]] line

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| 1921 || Introduced the [[Whal Pen|Wahl All Metal Fountain Pen]] line

| 1921 || Introduced the [[Wahl All Metal Fountain Pen]] line

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| 1922 || Purchase of the hard rubber factory ''Washington Rubber Co.''

| 1922 || Purchase of the hard rubber factory ''Washington Rubber Co.''