"Strowger switch" meaning in English

{
  "etymology_text": "From Almon Brown Strowger + switch.",
  "forms": [
    {
      "form": "Strowger switches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Strowger switch (plural Strowger switches)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A type of stepping switch able to select on two axes, formerly widely used in telephone exchanges."
      ],
      "id": "en-Strowger_switch-en-noun-poM7bMAJ",
      "links": [
        [
          "stepping switch",
          "stepping switch"
        ],
        [
          "telephone exchange",
          "telephone exchange"
        ]
      ],
      "related": [
        {
          "word": "Strowger exchange"
        }
      ],
      "wikipedia": [
        "Strowger switch"
      ]
    }
  ],
  "word": "Strowger switch"
}

{
  "etymology_text": "From Almon Brown Strowger + switch.",
  "forms": [
    {
      "form": "Strowger switches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Strowger switch (plural Strowger switches)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Strowger exchange"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "A type of stepping switch able to select on two axes, formerly widely used in telephone exchanges."
      ],
      "links": [
        [
          "stepping switch",
          "stepping switch"
        ],
        [
          "telephone exchange",
          "telephone exchange"
        ]
      ],
      "wikipedia": [
        "Strowger switch"
      ]
    }
  ],
  "word": "Strowger switch"
}